The Grammy-winning and platinum-selling group, known for their No. 1 singles "End of the Road" and "I'll Make Love to You," has a new album out in stores in November called "Love." Wanya and Nathan Morris still planned to perform at the awards show as a duo, according to the group's manager.

"We go all over the world really, so I am surprised it hasn't happened earlier, to be honest," Nathan Morris said. "I talked to [Stockman] today, and he is doing much better."

Stockman joins a growing list of stars who have fallen prey to the swine flu, including the Backstreet Boys' Brian Littrell and "Harry Potter" star Rupert Grint.